There were three friends. Maybe you've heard of them! Harry was rational, logical, and cunning. Hermione was rule oriented, moral, and always ethical. Ron was pleasure seeking, found it hard to delay gratification, and usually just did what he wanted. According to Freud, Hermione was mostly:a) idb) egoc) superegod) conscience

C) Superego

Explanation:

The superego's function is to control the id's impulses, especially those which society forbids, such as sex and aggression. It also has the function of persuading the ego to turn to moralistic goals rather than simply realistic ones and to strive for perfection.

answer; when one group has an extremely high score at pretest;

im sorry i wish i can but try google